namespace PhoneNumbers
{

    /**
    * INTERNATIONAL and NATIONAL formats are consistent with the definition in ITU-T Recommendation
    * E123. For example, the number of the Google Switzerland office will be written as
    * "+41 44 668 1800" in INTERNATIONAL format, and as "044 668 1800" in NATIONAL format.
    * E164 format is as per INTERNATIONAL format but with no formatting applied, e.g.
    * "+41446681800". RFC3966 is as per INTERNATIONAL format, but with all spaces and other
    * separating symbols replaced with a hyphen, and with any phone number extension appended with
    * ";ext=". It also will have a prefix of "tel:" added, e.g. "tel:+41-44-668-1800".
    *
    * Note: If you are considering storing the number in a neutral format, you are highly advised to
    * use the PhoneNumber class.
    */
    public enum PhoneNumberFormat
    {
        E164,
        INTERNATIONAL,
        NATIONAL,
        RFC3966
    }
}